<script lang="ts">
  import { onMount } from 'svelte';
  import { ShoppingCart } from 'lucide-svelte';
  import type { ShoppingListSnapshot } from '$lib/server/shopping/repository';

  let snapshot = $state<ShoppingListSnapshot>({ recipes: [], rows: [], uncheckedCount: 0 });
  let loading = $state(true);

  async function load() {
    loading = true;
    try {
      const res = await fetch('/api/shopping-list');
      snapshot = await res.json();
    } finally {
      loading = false;
    }
  }

  onMount(load);
</script>

<header class="head">
  <h1>Einkaufsliste</h1>
  {#if snapshot.recipes.length > 0}
    <p class="sub">
      {snapshot.uncheckedCount} noch zu besorgen · {snapshot.recipes.length} Rezept{snapshot.recipes.length === 1 ? '' : 'e'} im Wagen
    </p>
  {/if}
</header>

{#if loading}
  <p class="muted">Lädt …</p>
{:else if snapshot.recipes.length === 0}
  <section class="empty">
    <div class="big"><ShoppingCart size={48} strokeWidth={1.5} /></div>
    <p>Einkaufswagen ist leer.</p>
    <p class="hint">Lege Rezepte auf der Wunschliste in den Wagen, um sie hier zu sehen.</p>
  </section>
{/if}

<style>
  .head { padding: 1.25rem 0 0.5rem; }
  .head h1 { margin: 0; font-size: 1.6rem; color: #2b6a3d; }
  .sub { margin: 0.2rem 0 0; color: #666; }
  .muted { color: #888; text-align: center; padding: 2rem 0; }
  .empty { text-align: center; padding: 3rem 1rem; }
  .big { color: #8fb097; display: inline-flex; margin: 0 0 0.5rem; }
  .hint { color: #888; font-size: 0.9rem; }
</style>
